Cpl. Jacob H. Turbett, 21, died Feb. 13. He was from Canton, Mich.
Pfc. Jason H. Estopinal, also 21, of Dallas, Ga., died Monday.
Both were members of the 2nd Marine Division, II Marine Expeditionary Force serving in Helmand province, Afghanistan.
Estopinal was assigned to 2nd Battalion, 2nd Marine Regiment; Turbett was assigned to 2nd Combat Engineer Battalion.